Based on the data collected from the country, departments and districts, through the prevention and control rules and data modeling, analysis and evaluation, three risk states of green, orange and red are calculated. In addition, foreigners need to upload photos of identity documents when applying, as well as photos taken when holding identity documents. After the system is audited, they can follow the normal process.
The solution of changing health code to city is to reapply for health code in your city. The method of applying for health code is to find and click the health code program after entering Alipay, select the current city, click the View Now button to enter the information filling page, fill in the information on the information filling page, click the Submit button, and click the Confirm Submit button in the pop-up window to get the health code.
(1) The travel code will change color. Travel code is the code of communication big data travel card, which is also equivalent to health code. China Institute of Information and Communication, together with China Telecom, China Mobile and China Unicom, used mobile phones to receive data, which was obtained through the location of the base station where the user's mobile phone was located. Mobile phone users can query all the city information they have been to before 14 days through the service.
(2) The travel code will change color. Travel code is the code of communication big data travel card, which is also equivalent to health code. It is an inquiry service that China Institute of Information and Communication, together with China Telecom, China Mobile and China Unicom, uses the data received by the mobile phone to obtain information through the location of the base station where the user's mobile phone is located.